Door hanger



H; w. SHONNARD Feb. 19,1929.

' DOOR HANGER 2 Sheets-Sheet l Filed July 29. 1926' Feb. 19, 1929.- v 9 1,702,799.

1 H. w. SHONNARD DOOR HANGER FiiedJuly 29. 1926 2 Sheets-Sheet 2 Patented Feb. 19,1929. I

UNITED STATES 1,702,799 PATENT OFFICE.

HAROLD W. SHONNARD, OF MONTCLAIR, NEW JERSEY, ASSIGNOR IO ELEVATOR SUPPLIES COMPANY, INC., A CORPORATION OF NEW JERSEY. I

noon HANGER.

Application filed July 29,

, 5 larly for elevator doors.

The tendency in modern office buildings and the like is to provide eelvator shafts with wider door openings and heavier doors, and one of the objects of this invention is to pro 1 vide a form of rolling hanger which will give ure 2, Figure 4 is a a maximum of strength within the restricted space conveniently available for these hang ers under the conditions of standard elevator construction.

Another object of this invention is to provide a hanger for the purpose stated so constructed as to make it easy for an ordinary workman to adjust the parts to compensate for the Wear and tear incident touse.

A further object is to provide a novel con struction of the rolling parts and the associated track or rail, which prevents undue friction between such parts and the rail, evenin cases where the doors and rolling parts are not in perfect vertical alignment.

Further objects and advantages of this invention will fully appear in the following description.

Certain preferred forms of this invention are illustrated in the accompanying drawings, wherein Figure 1 is a view in front elevation of one form of my improved hanger, Figure 2 is a vertical sectional view through the middle of the same, Figure 3 is asectional view of a detail, taken on the line 33 of Figview in rear elevation of a modification, and Figure 5 is an end view of the same. j

The hanger shown in Figures 1 to 3 comprises a stiff box, which may be made either of cast or of bent metal. This box is closed at the top 10, bottom 11 and front 12. In back it is partly closed near the top as shown at 13, and the sides 14, 15 are cut away as clearly shown in Figure 2, to admit the rail or support 16 from which the hanger is suspended. To impart added stiffness it is preferred to give the back a dished shape as shown in Figures 1 and 2.

Abearing bolt 17, with a polygonal head 18 is inserted through the upper part of the dished portion of the front, and its end is screwed into the rear 13 of the box.

A bushing 19 is fitted over the shaft or bolt 17', and the ground roller 20 turns on roller the rollers to 1936. Serial no. 125,656.

bearings 21 supported on said bushing. The

roller 20 runs upon the upper surface of the rail 16 and against the under surface there runs a guard roller 22, carried in a groove on the stub shaft 23.

The shaft '23 passes through an inclined slot 24 in the lower part of the dished portion of the back-of the'box, and, as clearly shown in Figure 3, this shaft is cut on opposite sides to fit the straight sides of said slot 24, wherebythe shaft is prevented from turning. The outer or front end of this shaft is threaded, and carries anut 25 over a washer 26, by means of which the shaft is tightly secured in place, As shown in Figures 1 and 3, it is preferred to provide the washer 2G and the surface against which it bears with striations or ridges, adapted to fit together.

The construction just described makes it possible to adjust the parts from time to time as made necessary when the parts begin to wabble or rattle due to wear. To accomplish this, the nut 25 is loosened, and the washer is moved back far enough to free the interlocking ridges. The shaft 23 is then moved upward, or to the right in Figure 1, far enough to bring the roller 22 firmly up against the rail 16, and then the washer is pressed back again against the front of the box by screwing down the nut 25.

The door is fastened to the bottom of the hanger box by the bolts 27, passing through openings 28 in the bottom'll of the box, and fitting openings in the bent plate 29, which is slipped over the rear edge of the bottom 11. The head of each bolt 27 rests on the top of the bent plate 29, while the nut is screwed up tightly against the under side of and it is found in-practice that the workmen employed in such buildings cannot always be trusted to assemble the parts with accuracy.

Among the troubles to be contended with in I this regard is the fact that the bolts 27 are not always inserted in the exact vertical position. Insuch cases there is a tendency for I am on the rail, causing undue friction in operation. I

To avoid this, in my preferred construction, the upper surface of the rail 16 is made in the are of a circle in cross section; and,

.as shown by dotted lines in Figure 2, the

The result of this construction is that jamming is avoided in those cases in which the bolts 27 are not inserted accurately an a vertical position in the top of the door. I

In Figures 4 and 5 is shown a modification of the invention especially adapted to extra heavy doors. Here the back, front and top and bottom of the box are formed by bending a metal plate 2520f any desired length.

This plate is dished. at as many points as may be required, as shown at 33 and 34c in Figure 4, and each dished portion has an inclined slot 24 cut in it, with serrations on the adjacent surfaces as indicated by dotted lines in that figure. These slots, of course, accommodate the flattened stub shafts 23 of hangers such-as have already been described with reference to Figures 1, 2 and 3.

The ends of the elongated box are formed of bent or cast metal as shown in Figure 5, and 1n dotted lines in Figure 4,

at 35. If desired bent stiffening members may be used at intervals, as shown in dotted lines at 36' in Figure l. The bolts for fastening the doors I may be slipped in from the back through the openings 37.

Various changes may be made in the structures shown Without departing from the scope of my invention,and I do not limit myself to the details herein shown and described. i

,What I claim is A guiding and supporting rail in the form of a substantially oblong solid bar extending across the entire length of thedoors path of movement, said bar having its top and bottom surfaces shaped transversely on circular arcs struck with different radii from a common center near the upper surface of the bar, and a door hanger provided with a supporting sheave resting on the upper surface of said rail, .and a guide member engageable with the under surface thereof.-

In testimony whereof I have hereto affixed my signature on this 16th day of June, 1 926.

HAROLD W. .SHONNARD. 

